There will be a webcast on April 19, 2006, "Raise the Bar on Quality in All Your Business Applications."
Not that you could tell from the title, but it's on WebSphere Extended Deployment. The speakers are Jamie Thomas and Billy Newport.
For a preview, check out this podcast: Making SOA real with WebSphere, Episode 1: Improving resource utilization.
Update: Also, Billy has some recent, relevant posts on his blog:
Webcast: WebSphere Extended Deployment